:root {
  --max-contents-width: 980px;
}

body {
  position: relative;
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",
    "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue",
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: #333;
  font-size: 16px;
  line-height: 1.4;
}

strong {
  padding: 0.125rem 0.25rem;
  background-color: #bde8b6;
}

hr {
  margin: 6rem 0;
  background-color: #aaa;
}

a > i {
  margin-left: 0.5rem;
}

.header {
  width: 100%;
  height: 66px;
  box-sizing: border-box;
  position: fixed;
  background-color: #004d3f;
  color: #fff;
}

.header a {
  color: #fff;
}

.header-inside {
  width: auto;
  height: 100%;
  max-width: var(--max-contents-width);
  box-sizing: border-box;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
  padding: 0 1rem;
}

.header .logo {
  height: 23px;
  padding: 5px 0;
  font-size: 1.5rem;
  font-family: 'Poppins',"Helvetica Neue",Arial,"Hiragino Kaku Gothic ProN","Hiragino Sans",Meiryo,sans-serif;
  text-decoration: none;
}

.header .logo img {
  display: block;
}

.header-menu {
  display: flex;
  align-items: center;
}

.header-menuicon-label {
  font-size: 1.5rem;
}
@media screen and (max-width: 639px) {
  .header-menuicon-label {
    display: block;
  }
}
@media screen and (min-width: 640px) {
  .header-menuicon-label {
    display: none;
  }
}

.header-menuicon-check {
  width: 0;
  height: 0;
  visibility: hidden;
}

.header-togglearea {
  list-style: none;
  margin: 0;
}
@media screen and (max-width: 639px) {
  .header-togglearea {
    display: none;
  }
  .header-menuicon-check:checked + .header-togglearea {
    display: block;
    position: absolute;
    right: 0;
    top: 66px;
    padding: 1.5rem 1rem;
    background: #fff;
  }
}
@media screen and (min-width: 640px) {
  .header-togglearea {
    padding: 0;
    display: inline-flex;
    gap: 1rem;
  }
}

@media screen and (max-width: 639px) {
  .header-togglearea li {
    margin-top: 0.5rem;
  }
  .header-togglearea li:first-child {
    margin-top: 0;
  }
}

@media screen and (max-width: 639px) {
  .header-togglearea a {
    color: #004d3f;
  }
}


.title {
  margin: 0;
  padding: 3rem 1rem;
  text-align: center;
}

.contents {
  padding: 66px 0 10rem 0;
  background-color: #e9efe8;
}

.contents-inside {
  max-width: var(--max-contents-width);
  margin: 0 auto;
  padding: 1rem;
  box-sizing: border-box;
}

.section-title {
  margin: 0;
  padding: 0 0 3rem 0;
}

@media screen and (max-width: 639px) {
  .columns {
    display: flex;
    flex-direction: column;
    gap: 2rem;
  }
}
@media screen and (min-width: 640px) {
  .columns {
    display: flex;
    gap: 3rem;
  }
}

@media screen and (max-width: 639px) {
  .column-image {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
  }
}
@media screen and (min-width: 640px) {
  .column-image {
    width: 240px;
    flex: 0 0 240px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
}

.column-image img {
  width: 240px;
  height: auto;
  display: block;
  box-sizing: border-box;
  background: #ccc;
  border: 1px solid #ccc;
}

.column-text {
  flex: 1 1 auto;
}

.column-text p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
}

.column-text p + p {
  margin-top: 1rem;
}

.links {
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1rem;
  list-style: none;
}
p + .links {
  margin-top: 2rem;
}
@media screen and (max-width: 639px) {
  .links {
    width: 240px;
    flex-direction: column;
    margin: 0 auto;
  }
}
@media screen and (min-width: 640px) {
  .links {
    flex-direction: row;
    justify-content: left;
  }
}

.links a {
  width: 100%;
  height: 3rem;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 2rem;
  background-color: #004d3f;
  border-radius: 1.5rem;
  color: #fff;
  font-size: 0.875rem;
  font-weight: bold;
  text-decoration: none;
}

.links a:hover {
  opacity: 0.5;
}

.footer {
  padding: 1rem 0;
  background-color: #004d3f;
  color: #fff;
}

.footer p {
  text-align: center;
  font-size: 0.875rem;
}